/**
* Creates the errors that are related to a bad indentation (number of space chars is not ok).
*
* @param monitor
*/
private static void createBadIndentForSpacesMessages(
IDocument doc,
IAnalysisPreferences analysisPrefs,
IIndentPrefs indentPrefs,
ArrayList<IMessage> ret,
List<Tuple3<String, Integer, Boolean>> validsAre,
IProgressMonitor monitor) {
int tabWidth = indentPrefs.getTabWidth();
// if we're analyzing the spaces, let's mark invalid indents (tabs are not searched for those
// because
// a tab always marks a full indent).
FastStringBuffer buffer = new FastStringBuffer();
for (Tuple3<String, Integer, Boolean> indentation : validsAre) {
if (monitor.isCanceled()) {
return;
}
if (!indentation
.o3) { // if it does not have more contents (its only whitespaces), let's keep on going!
continue;
}
String indentStr = indentation.o1;
if (indentStr.indexOf("\t") != -1) {
continue; // the ones that appear in tabs and spaces should not be analyzed here (they'll
// have their own error messages).
}
int lenFound = indentStr.length();
int extraChars = lenFound % tabWidth;
if (extraChars != 0) {
Integer offset = indentation.o2;
int startLine = PySelection.getLineOfOffset(doc, offset) + 1;
int startCol = 1;
int endCol = startCol + lenFound;
buffer.clear();
ret.add(
new Message(
IAnalysisPreferences.TYPE_INDENTATION_PROBLEM,
buffer.append("Bad Indentation (").append(lenFound).append(" spaces)").toString(),
startLine,
startLine,
startCol,
endCol,
analysisPrefs));
}
}
}
/**
* Analyze the doc for mixed tabs and indents with the wrong number of chars.
*
* @param monitor
* @return a list with the error messages to be shown to the user.
*/
public static List<IMessage> analyzeDoc(
IDocument doc,
IAnalysisPreferences analysisPrefs,
String moduleName,
IIndentPrefs indentPrefs,
IProgressMonitor monitor) {
ArrayList<IMessage> ret = new ArrayList<IMessage>();
// don't even try to gather indentation errors if they should be ignored.
if (analysisPrefs.getSeverityForType(IAnalysisPreferences.TYPE_INDENTATION_PROBLEM)
== IMarker.SEVERITY_INFO) {
return ret;
}
List<Tuple3<String, Integer, Boolean>> foundTabs =
new ArrayList<Tuple3<String, Integer, Boolean>>();
List<Tuple3<String, Integer, Boolean>> foundSpaces =
new ArrayList<Tuple3<String, Integer, Boolean>>();
TabNannyDocIterator it;
try {
it = new TabNannyDocIterator(doc);
} catch (BadLocationException e) {
return ret;
}
while (it.hasNext()) {
Tuple3<String, Integer, Boolean> indentation;
try {
indentation = it.next();
} catch (BadLocationException e) {
return ret;
}
// it can actually be in both (if we have spaces and tabs in the same indent line).
if (indentation.o1.indexOf('\t') != -1) {
foundTabs.add(indentation);
}
if (indentation.o1.indexOf(' ') != -1) {
foundSpaces.add(indentation);
}
if (monitor.isCanceled()) {
return ret;
}
}
int spacesFoundSize = foundSpaces.size();
int tabsFoundSize = foundTabs.size();
if (spacesFoundSize == 0 && tabsFoundSize == 0) {
// nothing to do here... (no indents available)
return ret;
}
// let's discover whether we should mark the tabs found as errors or the spaces found...
boolean markTabsAsError;
// if we found the same number of indents for tabs and spaces, let's use the user-prefs to
// decide what to do
if (spacesFoundSize == tabsFoundSize) {
// ok, we have both, spaces and tabs... let's see what the user actually wants
markTabsAsError = indentPrefs.getUseSpaces(false);
} else if (tabsFoundSize > spacesFoundSize) {
// let's see what appears more in the file (and mark the other as error).
markTabsAsError = false;
} else {
markTabsAsError = true;
}
List<Tuple3<String, Integer, Boolean>> errorsAre;
List<Tuple3<String, Integer, Boolean>> validsAre;
String errorMsg;
char errorChar;
if (markTabsAsError) {
validsAre = foundSpaces;
errorsAre = foundTabs;
errorMsg = "Mixed Indentation: Tab found";
errorChar = '\t';
createBadIndentForSpacesMessages(doc, analysisPrefs, indentPrefs, ret, validsAre, monitor);
} else {
validsAre = foundTabs;
errorsAre = foundSpaces;
errorMsg = "Mixed Indentation: Spaces found";
errorChar = ' ';
}
createMixedErrorMessages(doc, analysisPrefs, ret, errorsAre, errorMsg, errorChar, monitor);
return ret;
}
/**
* Performs the action with a given PySelection
*
* @param ps Given PySelection
* @return boolean The success or failure of the action
*/
public int perform(PySelection ps) {
// What we'll be replacing the selected text with
FastStringBuffer strbuf = new FastStringBuffer();
try {
// discover 1st line that starts the block comment
int i;
int startLineIndex = getStartIndex(ps);
int endLineIndex = getEndIndex(ps);
if (startLineIndex == -1 || endLineIndex == -1) {
if (startLineIndex == -1 && endLineIndex == -1) {
return -1;
} else if (startLineIndex == -1) {
startLineIndex = endLineIndex;
} else {
endLineIndex = startLineIndex;
}
}
// For each line, uncomment it
for (i = startLineIndex; i <= endLineIndex; i++) {
boolean addDelim = true;
String spacesBefore = "";
String line = ps.getLine(i);
int lineLen = line.length();
for (int j = 0; j < lineLen; j++) {
char c = line.charAt(j);
if (c == '#') {
// ok, it starts with # (so, remove the whitespaces before it)
if (j > 0) {
spacesBefore = line.substring(0, j);
}
line = line.substring(j);
break;
} else {
if (!Character.isWhitespace(c)) {
break;
}
}
}
if (line.startsWith("#")) {
line = line.substring(1);
}
// get the chars used in block-comments
AbstractBlockCommentAction[] acts =
new AbstractBlockCommentAction[] {
new PyAddSingleBlockComment(), new PyAddBlockComment()
};
HashSet<Character> chars = new HashSet<Character>();
for (int j = 0; j < acts.length; j++) {
AbstractBlockCommentAction action = acts[j];
chars.add(action.getColsAndChar().o2);
}
if (line.length() > 0) {
boolean removedChar = false;
char lastChar = '\0';
for (int j = 0; j < line.length(); j++) {
lastChar = line.charAt(j);
if (!chars.contains(lastChar)) {
break;
} else {
removedChar = true;
line = line.substring(1);
j--;
}
}
if (line.length() == 0 && removedChar) {
addDelim = false;
}
if (removedChar && lastChar == ' ') {
line = line.substring(1);
}
}
if (addDelim) {
strbuf.append(spacesBefore);
strbuf.append(line);
String lineDelimiter = ps.getDoc().getLineDelimiter(i);
if (lineDelimiter != null) {
strbuf.append(lineDelimiter);
}
}
}
// Ok, at this point things should be correct, but make sure than on uncomment,
// the code goes to a proper indent position (remove spaces we may have added when creating a
// block).
String string = strbuf.toString();
List<String> lines = StringUtils.splitInLines(string);
Tuple<Integer, String> posAndLine = new Tuple<Integer, String>(-1, "");
for (String line : lines) {
int firstCharPosition = PySelection.getFirstCharPosition(line);
if (firstCharPosition < posAndLine.o1 || posAndLine.o1 < 0) {
posAndLine.o1 = firstCharPosition;
posAndLine.o2 = line;
}
}
if (posAndLine.o1 > 0) {
final String sub = posAndLine.o2.substring(0, posAndLine.o1);
if (sub.endsWith(
" ")) { // If it ends with a tab, we won't change anything (only spaces are removed --
// which we may have introduced)
boolean allEqual = true;
for (String line : lines) {
if (!line.startsWith(sub)) {
allEqual = false;
break;
}
}
if (allEqual) {
if (sub.startsWith("\t")) {
// Tabs based indent: remove any ending spaces (and at this point we know a string
// ends with a space)
int j;
for (j = sub.length() - 1; j >= 0; j--) {
char c = sub.charAt(j);
if (c != ' ') {
j++;
break;
}
}
String newSub = sub.substring(0, j);
strbuf.clear();
for (String line : lines) {
strbuf.append(newSub);
strbuf.append(line.substring(sub.length()));
}
} else {
IIndentPrefs indentPrefs;
if (targetEditor instanceof PyEdit) {
PyEdit pyEdit = (PyEdit) targetEditor;
indentPrefs = pyEdit.getIndentPrefs();
} else {
indentPrefs = DefaultIndentPrefs.get();
}
String indentationString = indentPrefs.getIndentationString();
int subLen = sub.length();
int indentLen = indentationString.length();
int mod = subLen % indentLen;
if (mod != 0) {
String substring = sub.substring(subLen - mod, subLen);
boolean onlyWhitespaces = true;
for (int k = 0; k < substring.length(); k++) {
if (substring.charAt(k) != ' ') {
onlyWhitespaces = false;
break;
}
}
if (onlyWhitespaces) {
String newSub = sub.substring(0, subLen - mod);
strbuf.clear();
for (String line : lines) {
strbuf.append(newSub);
strbuf.append(line.substring(sub.length()));
}
}
}
}
}
}
}
// Replace the text with the modified information
int startLineOffset = ps.getLineOffset(startLineIndex);
int endLineOffset = ps.getEndLineOffset(endLineIndex);
String endLineDelimiter = ps.getDoc().getLineDelimiter(endLineIndex);
if (endLineDelimiter != null) {
endLineOffset += endLineDelimiter.length();
}
String str = strbuf.toString();
ps.getDoc().replace(startLineOffset, endLineOffset - startLineOffset, str);
return startLineOffset + str.length();
} catch (Exception e) {
beep(e);
}
// In event of problems, return false
return -1;
}